40 MES. LEOKORA J. WILSMORE ON SOME 



suckers which " enable the anemone to hold itself upright against any smooth 

 surface. '^ Faurot appears to refer to the same projections as " pli de con- 

 traction '^ (15). A series of white, irregular, longitudinal lines are visible 

 through the external walls of the scapus and capitulum. They agree in 

 number with the mesenteries, and probably correspond to the insertion of 

 the mesenteries in the column. Other lines, shorter, more irregular, and 

 transverse, fill in the spaces between the longitudinal ones. In both polyps 

 the oesophagus is partly extruded, so that description of mouth or disc is 

 impossible. In the adult (PI. 4. fig. 1, oes.), folds of the oesophagus envelop 

 the oral end of the siphonoglyphe, and the tentacles — twelve, marginal, 

 monocyclic, short and obtuse — are also largely concealed. The only one 

 fully visible measures 2-b mm. In the larval form (PI. 4. fig. 2) the 

 capitulam is retracted, and the single row of tentacles (PI. 4. fig. 2, te7it.), 

 which vary in length from 1-1*5 mm., is fully visible with a crown of lobes 

 above them. These lobes are the extruded oesophagus (PL 4. fig. 2, oes.), 

 which, being held back at regular intervals by the mesenteries attached to 

 the oesophageal walls, appears to be lobed. 



It is characteristic of the genus Peachia that the tube of the siphonoglyphe 

 ends orally in a conchula or external opening, independent of the mouth, the 

 shape of this conchula varying in the diff'erent species (13). The siphono- 

 glyphe is present as an open tube in both these examples of Peachia ; hence 

 the separate conchula is not present. In the adult the oral end of the 

 siphonoglyphe is unfortunately not distinguishable from the loose folds of 

 the extruded oesophagus which envelop it. The larval siphonoglyphe, visible 

 to the naked eye, forms a deep, open, thick- walled gutter between two lobes 

 of the oesophagus, and ends in simple thick rounded lobes \Nhich would form 

 two complete lips were the gutter to close as a tube. Possibly in both 

 specimens the degree of contraction has caused the tube to open. 



Colour. — Sandy iu spirit-specimens. Professor Hill states that it was 

 cream-coloured when alive. 



Dimensions. — Adult : Length 52 mm. ; diameter varies considerably, 

 greatest diameter 9 mm. Physa : Length 1-5 mm.; diameter 1*5 mm. 

 Larval form : Length 20 mm. ; diameter 5-2 nnn. Physa introverted. 



Locality.— Q,a.vig\ii iu a fishing-net off Clareville Wharf, Broken Bay, 

 New South Wales, by Professor J. P. Hill, in 1893. Depth of water 

 about four fathoms. Two specimens. 



I have the pleasure of naming this, the first known Australian species of 

 Peachia, in honour of tlie discoverer, Professor Hill. 



Column-wall. — Sections of the column-wall have a characteristic appear- 

 ance, owing to the numerous small projections or suckers (PI. 4. figs. 3, 4, 5) 

 on the surface. These are formed by long processes from the outer border 

 only of the mesogloea, covered by thin ectoderm, which, however, appears 

 massive between the suckers, where the opposing f;ices of the ectoderm often 



